/*!
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
import type { Dayjs } from "dayjs";
import { useMemo } from "react";

export const useCalendarSelect = (currentMonth: Dayjs) =>
  useMemo(() => {
    const monthStart = currentMonth.startOf("month");
    const monthEnd = currentMonth.endOf("month");
    const startDate = monthStart.startOf("week");
    const endDate = monthEnd.endOf("week");

    const days = [];
    let day = startDate;

    while (day.isSame(endDate, "day") || day.isBefore(endDate, "day")) {
      days.push(day);
      day = day.add(1, "day");
    }

    return { days, monthEnd, monthStart };
  }, [currentMonth]);
